<PRE><B>Question 824447</B>
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x = speed carA
y = speed carB
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x = y + 5
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s = x + y
s = y + 5 + y
s = 2y + 5
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s = d / t
2y + 5 = 150/2
2y = 70
y = 35
x = 40
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answer:
x = speed carA = 40 kph
y = speed carB = 35 kph
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